From WestWorld season 3 episode 2 there is an antique keychain featured that is amazingly accurate. Maeve is escaping Warworld (ww2 themed park) her lover Hector is helping her; this is his keychain. Love to the prop master for using a keychain that would be used in the early 1940's.
The last picture is from my personal collection that is the exact same type of keychain.
